package com.zhoukx.facade;

/**
 * @ClassName Projector
 * @Description:
 * @Author zhoukx
 * @Date 2020/8/10
 **/
public class Projector {

    private static Projector instact = new Projector();

    public static Projector getInstance() {
        return instact;
    }


    public void on() {
        System.out.println("投影仪 on .........");
    }

    public void off() {
        System.out.println("投影仪 off .........");
    }

    public void play() {
        System.out.println("投影仪 play .........");
    }

    public void focus(){
        System.out.println("投影仪 focus........");
    }
}
